---
name: flutter-navigator-v1-imperative
description: Standard Flutter navigation using Navigator 1.0 (push/pop).
metadata:
  labels: [navigation, navigator, flutter-core]
  triggers:
    files: ['**/app.dart']
    keywords: [Navigator, push, pop, MaterialPageRoute, onGenerateRoute]
---

# Navigator v1 Navigation

## **Priority: P0 (CRITICAL)**

Standard imperative navigation system built into Flutter using `Navigator` and `MaterialPageRoute`.

## Implementation Guidelines

- **Standard Push**: Use `Navigator.of(context).push(MaterialPageRoute(builder: (_) => Screen()))`.
- **Named Routes**: Define `routes` map in `MaterialApp` or use `onGenerateRoute` for dynamic routing.
- **Passing Arguments**:
  - For named routes: Use `Navigator.pushNamed(context, '/path', arguments: data)`.
  - For `onGenerateRoute`: Extract arguments using `settings.arguments`.
- **Returning Data**: `final result = await Navigator.push(...)` and `Navigator.pop(context, data)`.
- **Replacing Screens**: Use `pushReplacement` or `pushAndRemoveUntil` for auth/splash flows.

## Code Example

```dart
// Basic Push
Navigator.push(
  context,
  MaterialPageRoute(builder: (context) => const DetailScreen()),
);

// Named Routes Configuration
MaterialApp(
  initialRoute: '/',
  onGenerateRoute: (settings) {
    if (settings.name == '/details') {
      final args = settings.arguments as Map;
      return MaterialPageRoute(
        builder: (context) => DetailScreen(id: args['id']),
      );
    }
    return null;
  },
);

// Navigation with Arguments
Navigator.pushNamed(
  context,
  '/details',
  arguments: {'id': 123},
);
```

## Anti-Patterns

- **Deep Nesting**: Avoid anonymous routes for complex apps; use `onGenerateRoute`.
- **Manual String Paths**: Always use constants for route names.
- **Context Leaks**: Ensure `BuildContext` is valid when calling `Navigator.of(context)`. Use `ScaffoldMessenger` or global keys if navigation is needed outside `build`.

## Reference & Examples

For centralized `onGenerateRoute` implementation:
See [references/on-generate-route.md](references/on-generate-route.md).

## Related Topics

idiomatic-flutter | widgets


---
Source attribution: ngxtm
Original project: https://github.com/ngxtm/devkit/blob/9439f27ce3fa7fe53ff9278a1ee9a44bffa70eba/rules/flutter/navigator-v1-navigation/SKILL.md
License: MIT
License information: https://opensource.org/license/mit
Original upstream instructions; downloaded from Mega AI Hub.

## Upstream license notice

MIT License

Copyright (c) 2024

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.



# Mega AI Hub resource metadata

Creator / publisher: ngxtm
Original project: https://github.com/ngxtm/devkit/blob/9439f27ce3fa7fe53ff9278a1ee9a44bffa70eba/rules/flutter/navigator-v1-navigation/SKILL.md
Attribution basis: Source repository record

Fields of work: Development & Engineering
Roles: Frontend Developer, Mobile Developer
Specialties: API, Cross Platform, Mobile
Tools: Flutter
Country applicability: Country not specified
Classification basis: Source catalog labels
Instruction SHA-256: 40f78b4ec24431ce4b74f5c6354966229250479f3dd88ce1a0d9fb4da98d2da2